loop0: detected capacity change from 0 to 32768
gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
gfs2: fsid=syz:syz.s: fatal: filesystem consistency error - inode = 1 19, function = gfs2_jdesc_check, file = fs/gfs2/super.c, line = 119
gfs2: fsid=syz:syz.s: G:  s:SH n:2/13 f:aqob t:SH d:EX/0 a:0 v:0 r:2 m:20 p:4
gfs2: fsid=syz:syz.s:  H: s:SH f:eEcH e:0 p:5365 [syz.0.0] init_journal+0x17f8/0x2260 fs/gfs2/ops_fstype.c:793
gfs2: fsid=syz:syz.s:  I: n:1/19 t:8 f:0x00 d:0x00000200 s:8388608 p:0
gfs2: fsid=syz:syz.s: about to withdraw this file system
------------[ cut here ]------------
kernel BUG at fs/gfs2/util.c:331!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5365 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:gfs2_withdraw+0x137b/0x1430 fs/gfs2/util.c:331
Code: ff ff 48 8b 4c 24 18 80 e1 07 80 c1 03 38 c1 0f 8c 55 fb ff ff 48 8b 7c 24 18 e8 f0 53 25 fe e9 46 fb ff ff e8 66 67 c0 fd 90 <0f> 0b 48 8b 4c 24 18 80 e1 07 80 c1 03 38 c1 0f 8c ab fb ff ff 48
RSP: 0018:ffffc9000d447460 EFLAGS: 00010287
RAX: ffffffff83ff565a RBX: ffffc9000d447520 RCX: 0000000000100000
RDX: ffffc9000e292000 RSI: 000000000000cbf8 RDI: 000000000000cbf9
RBP: ffffc9000d447600 R08: ffff88801fc24253 R09: 1ffff11003f8484a
R10: dffffc0000000000 R11: ffffed1003f8484b R12: dffffc0000000000
R13: 1ffff92001a88ea0 R14: 1ffff11008417015 R15: 0000000000000004
FS:  00007f3da7f656c0(0000) GS:ffff88808d20d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f32729909c0 CR3: 00000000423b6000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 gfs2_jdesc_check+0x17d/0x2f0 fs/gfs2/super.c:-1
 check_journal_clean+0x158/0x310 fs/gfs2/util.c:69
 init_journal+0x17f8/0x2260 fs/gfs2/ops_fstype.c:793
 init_inodes+0xdb/0x320 fs/gfs2/ops_fstype.c:851
 gfs2_fill_super+0x1923/0x20d0 fs/gfs2/ops_fstype.c:1253
 get_tree_bdev_flags+0x40b/0x4d0 fs/super.c:1692
 gfs2_get_tree+0x51/0x1e0 fs/gfs2/ops_fstype.c:1335
 vfs_get_tree+0x92/0x2b0 fs/super.c:1815
 do_new_mount+0x2a2/0x9e0 fs/namespace.c:3808
 do_mount fs/namespace.c:4136 [inline]
 __do_sys_mount fs/namespace.c:4347 [inline]
 __se_sys_mount+0x317/0x410 fs/namespace.c:4324
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3da719038a
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f3da7f64e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f3da7f64ef0 RCX: 00007f3da719038a
RDX: 0000200000000400 RSI: 0000200000000000 RDI: 00007f3da7f64eb0
RBP: 0000200000000400 R08: 00007f3da7f64ef0 R09: 0000000000200000
R10: 0000000000200000 R11: 0000000000000246 R12: 0000200000000000
R13: 00007f3da7f64eb0 R14: 00000000000125d9 R15: 0000200000000f40
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:gfs2_withdraw+0x137b/0x1430 fs/gfs2/util.c:331
Code: ff ff 48 8b 4c 24 18 80 e1 07 80 c1 03 38 c1 0f 8c 55 fb ff ff 48 8b 7c 24 18 e8 f0 53 25 fe e9 46 fb ff ff e8 66 67 c0 fd 90 <0f> 0b 48 8b 4c 24 18 80 e1 07 80 c1 03 38 c1 0f 8c ab fb ff ff 48
RSP: 0018:ffffc9000d447460 EFLAGS: 00010287
RAX: ffffffff83ff565a RBX: ffffc9000d447520 RCX: 0000000000100000
RDX: ffffc9000e292000 RSI: 000000000000cbf8 RDI: 000000000000cbf9
RBP: ffffc9000d447600 R08: ffff88801fc24253 R09: 1ffff11003f8484a
R10: dffffc0000000000 R11: ffffed1003f8484b R12: dffffc0000000000
R13: 1ffff92001a88ea0 R14: 1ffff11008417015 R15: 0000000000000004
FS:  00007f3da7f656c0(0000) GS:ffff88808d20d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f32729909c0 CR3: 00000000423b6000 CR4: 0000000000352ef0